When two heavy nuclei are colliding in peripheral collision in heavy ion collisions experiments (HIC), a huge magnetic field can be produced according to Biot Savart law. The field strengths can approximately be \(m_\pi ^2\)  in RHIC energy and \(10 m_\pi ^2\)  in LHC energy [1]} .
It can decay with time, whose detailed space-time profile are investigated recently in many references. The reader may see Refs. [1]}, [3]}, [4]} and references therein. This decay time may [3]}, [4]} or may not [1]} be smaller than lifetime of QGP. Fact is still a matter of debate.
The decay profile of the magnetic field [1]} can be controlled by the electrical conductivity of the QGP medium. In this context, the present work has explored its existing numerical values, calculated from different microscopic models, and then use them for generating corresponding decay profiles of magnetic field.
